cylindrical magnetic stirring bars, with centre ring

Description :

Cylindrical Magnetic Stirring Bars with Center Ring Cylindrical magnetic stirring bars with a center ring are commonly used laboratory tools designed to provide efficient mixing across a wide range of applications. The center ring enhances their stability and rotation, making them particularly effective for consistent and thorough mixing. Here’s an in-depth look at their features, applications, and benefits: Design and Shape Cylindrical Shape: The cylindrical design is one of the most common shapes for magnetic stirring bars. Its simplicity allows for easy rotation and efficient mixing in various types of vessels. Center Ring: The addition of a center ring around the stirring bar helps to reduce friction between the bar and the bottom of the vessel. This design feature enhances the bar's stability and prevents it from wandering or jumping during mixing. Applications Chemical Synthesis: Ideal for chemical synthesis where thorough mixing of reactants is crucial to achieve uniform reaction conditions. Biological Research: Used for mixing biological samples, such as cell cultures or biological fluids, where consistent and gentle mixing is necessary. Pharmaceuticals: Suitable for the preparation of pharmaceutical formulations where precise mixing is essential. Environmental Testing: Employed in environmental testing laboratories to mix samples and reagents, ensuring thorough distribution and accurate analysis. Analytical Chemistry: Used in analytical chemistry for preparing homogeneous solutions and suspensions. Benefits Efficient Mixing: The cylindrical shape ensures efficient and thorough mixing in various vessel types. The center ring helps to create a stable and consistent rotation, enhancing the mixing process. Smooth Rotation: The center ring reduces friction between the stirring bar and the vessel, allowing for smoother and more stable rotation. This helps prevent the bar from slipping or moving erratically within the vessel. Chemical Resistance: The PTFE coating provides excellent resistance to a wide range of chemicals, making these stirring bars suitable for use in harsh chemical environments. Durability: The robust magnetic core and durable PTFE coating ensure long-lasting performance, even under continuous use. Versatility: Suitable for use in a variety of vessels, including beakers, flasks, and larger containers, making them versatile tools for different laboratory applications. Tips for Use Magnetic Stirrer Compatibility: Ensure the magnetic stirrer used is compatible with the size and shape of the cylindrical stirring bar with a center ring to achieve optimal performance. Appropriate Vessel: Use cylindrical stirring bars in vessels that match their size and shape to ensure effective mixing. Their design is suitable for a range of vessel types. Cleaning and Maintenance: Regularly clean the stirring bars to remove any residues and maintain their chemical resistance and performance. PTFE-coated bars can usually be cleaned with mild detergents and rinsed thoroughly with water. Comparison with Other Shapes Octagonal Bars with Pivot Rings: Octagonal bars with pivot rings provide enhanced turbulence and smooth rotation, while cylindrical bars with center rings are simpler in design but still offer stable and efficient mixing. Oval Bars: Oval bars are effective for round bottom flasks but may not fit as well in flat-bottomed vessels as cylindrical bars with center rings. Triangular Bars: Triangular bars generate strong turbulence at low speeds and are effective for churning sediments, while cylindrical bars with center rings are designed for consistent mixing in various applications. Summary Cylindrical magnetic stirring bars with center rings are essential tools for laboratories that require efficient and thorough mixing. Their simple cylindrical design, enhanced by the addition of a center ring, ensures smooth and stable rotation, making them suitable for a wide range of applications in chemical synthesis, biological research, pharmaceuticals, environmental testing, and analytical chemistry. The combination of a strong magnetic core and durable PTFE coating ensures long-lasting performance and excellent chemical resistance, making these stirring bars a valuable addition to any laboratory. * Assorted pack contains 2 pcs each of 8×14 mm 8×22 mm 8×30 mm 8×40 mm and 1 pcs each of 8×50 mm 8×65 mm 1 Alnico V magnets are composed primarily of aluminum (Al), nickel (Ni), and cobalt (Co), along with small amounts of other elements such as copper (Cu) and titanium (Ti). The composition typically consists of approximately 9% aluminum, 24% nickel, 13% cobalt, 3% copper, and 1% titanium, with the remainder being iron (Fe). The exact composition may vary from batch to batch. Alnico V magnets are known for their strong magnetic properties and high resistance to demagnetization. CARE INSTRUCTIONS To ensure the longevity and effectiveness of magnetic stirring bars, it's essential to handle and maintain them properly: Cleaning: Regularly clean the stirring bars after each use to prevent buildup of residue or contamination. Use a suitable cleaning agent and rinse thoroughly with distilled water. Storage: Store stirring bars away from strong magnetic fields and corrosive chemicals. Store them in a dry and clean environment to prevent damage. Handling: Handle stirring bars with care to avoid chipping or breaking. Avoid dropping or banging them against hard surfaces. Compatibility: Ensure that the stirring bars are compatible with the solvent or solution being stirred. Some chemicals can react with or damage certain types of stirring bars. Usage: Use stirring bars within their specified temperature and chemical compatibility limits. Avoid overheating or exposing them to harsh chemicals. Maintenance: Inspect stirring bars regularly for signs of damage or wear. Replace any damaged or worn bars to maintain optimal performance. Following these care guidelines can help prolong the life of your magnetic stirring bars and ensure they perform effectively in your laboratory applications. Optional but useful Chempure® Magnetic Stirring Bar Retriever, PTFE Cylindrical permanent magnet with sealed ends, designed for easy insertion or removal of bars. Chempure® Magnetic Stirring Bar Flexible Retriever, PTFE